SHARES OF ION GEOPHYSICAL UNDER PRESSURE, DOWN 0.8% (IO) - Zacks.com

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SHARES OF ION GEOPHYSICAL UNDER PRESSURE, DOWN 0.8% (IO) Zacks.com Jul 01, 2011 (SmarTrend(R) Market Surveillance via COMTEX) -- ION Geophysical (NYSE:IO - Snapshot Report) is one of today's notable stocks in decline, down 0.8% to $9.38. The S&P is currently trading fractionally higher to 1321 and the Dow Jones ... and more »